Home / 38,986.32-53,801.16-21,081.33

Finding the Fourth Proportional to 38,986.32, 53,801.16 and 21,081.33

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Solution

The fourth proportional to 38,986.32, 53,801.16 and 21,081.33 is: 29,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.32 : 53,801.16 = 21,081.33 : x
  2. Step 2: Convert to fraction form
    38,986.32/53,801.16 = 21,081.33/x
  3. Step 3: Cross multiply
    38,986.32x = 53,801.16 × 21,081.33
  4. Step 4: Simplify right side
    38,986.32x = 1,134,200,008.34
  5. Step 5: Solve for x
    x = 1,134,200,008.34/38,986.32
  6. Step 6: Final answer
    x = 29,092.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.